Question

The producer of a candy bar, called the “King James” Bar, reports on the package that the calorie content is 420 per 2-ounce bar. A sample of five bars from each of the last 10 days is sent for a chemical analysis of the calorie content. The results are shown next. Does it appear that there are any days where the calorie count is out of control? Develop an appropriate control chart and analyze yourfindings.